How to make s CO2 bag?

CO2 bags are a less-kown non-hazardous method of supplying CO2 to plants. The bags consist of a type of fungus called mycelium in a nutrient ambient. When the fugnus grows, it generates CO2 until it exhaust all the nutrients. Sounds pertty simple to set up. So I am wondering how effective is this method, and if it effective, why it has not been mentioned/used more often by micro-growers?



On the other hand, the comercial CO2 bags like CO2 Exhale bag are rediculusly expensive for me that don't live in the US.



What I need to know to make such bag is where to get mycelium and what is the nutrient to put in the bag?

If I know that I just put them together in a bag. I could not find any DIY guid to make a CO2 bag so appreciate your hints.

Hint: newbs don't need extra CO2. The benefits are seen by experienced users in high production grows.

Many posts on RIU about CO2, but rarely do I see any huge impact at harvest time.

My advice, place your time your time and effort in lighting, soil, temps, and food. These areas have the biggest impact on successful grows.

Especially when we are talking about new growers.

I agree as above there are more important prospects of the grow that you could invest time in that would help with yield. Soil, light, the endless list of nutrients, temps/air flow. all things that's you need to take in to consideration. good luck with you set up.

I agree with both of you above. But the topic's main question here is HOW to make a CO2 bag.

shortcut:

The simplest DIY is to blow up an air mattress or similar inflatable device, and rig up a slow leak cork
You can also use yeast to generate CO2, but we do believe it's worth the effort
Dr. Jekyll

As mentioned by others, there are more important areas to focus your efforts and money upon.
Mr. Hyde

There may (probably is) be a forum or sub (Reddit?) somewhere about growing mushrooms, maybe google it. Whether they grow for food fun or whatever, it's the same practice. you should be able to get more relevant answers there. Oh btw I think I remember reading that blue oyster cult mushrooms are good to have in your veg room. (Hehe BOC or blue oyster mushrooms)

Milk jug...yeast packet...multi vitamins (crushed)...warm water
Mix well and Put some holes in the lid of the milk jug...store it "above" your grow area
The yeast will use the vitamins for a food source
I run a tube from the milk jug down into the canopy...works for me...g/l

I am no expert. Last year I grew 50 pounds of Oyster mushrooms on straw outside of my house. It was easy because oysters are very aggressive growers. I have also grown Lions Mane, Reishi, Shiitake, Psilocybe Cubensis and others. I know how to grow stuff is what I am saying. I like growing cannabis also. From what I can tell, the bag is filled with sawdust made from wood. They fill it with wood because you want it to last 6 months. Wood takes a long time to decompose, longer than cardboard or straw. Depending on what type of sawdust you get, this determines what type of mushroom you can grow. Oysters will grow on a lot of stuff like cardboard, straw and any type of hardwood. Oyster mushrooms also have different temperature ranges they like to be at. Make sure and pick one out that likes warmer areas like grow rooms. Blue oysters might not be the best. Pink oysters like it warmer and normal oysters are in the middle. Pink will be the most aggressive if warm, 70 to 80.

If I was to do this, I would use a sealable, autoclavable bag with filter batch. You can find these on Amazon. To that, I would add oak fire pellets, water, and gypsum. If you want the recipe, let me know and I will post it or just look for oak sawdust substrate for shiitakes. Pressure cook this mixture, 60 minutes and let cool. Innoculate bag with a pink oyster mushroom culter.

The mycelium will not produce any fruit or mushrooms until the CO2 level gets lower then it is in the bag. This will never happen if you keep the bag sealed and only let CO2 out of the filter patch.

To buy the stuff to make it, you are going to spend 20 dollars on spores, 5 dollars on the bag, other supplies, then all of the work to get everything else. You will need a pressure cooker and need to process it. I think the only way this makes sense is when it saves you money. It will save you money if you make a bunch of bags and sell them. Making one is a waste of time unless you all ready have the stuff. I am personally going to make one because I all ready have the stuff and it will not cost me anything.

wartime said:

I am no expert. Last year I grew 50 pounds of Oyster mushrooms on straw outside of my house. It was easy because oysters are very aggressive growers. I have also grown Lions Mane, Reishi, Shiitake, Psilocybe Cubensis and others. I know how to grow stuff is what I am saying. I like growing cannabis also. From what I can tell, the bag is filled with sawdust made from wood. ... (cont).

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Sounds good - do you think pink oysters produce enough co2? Any idea if certain mushrooms produce more? I was going to just buy an exhale bag and clone whatever it is they used.

what micron patch do you think would work best? I was thinking the largest micron bag

when you say it won’t fruit until co2 gets lower you mean as long as the bag has high concentration of co2 it won’t fruit? I.e. as long as it’s still growing and producing co2 it won’t fruit?

Just sawdust for the substrate? That’s awesome, no need to add any minerals or nutrients or anything? The gypsum, is that just to help the mycelium colonize better or does it actually eat the stuff?

if these exhale bags actually work this could be a dead easy cheap way to get co2 into the room.

shortcut said:

CO2 bags are a less-kown non-hazardous method of supplying CO2 to plants. The bags consist of a type of fungus called mycelium in a nutrient ambient. When the fugnus grows, it generates CO2 until it exhaust all the nutrients. Sounds pertty simple to set up. So I am wondering how effective is this method, and if it effective, why it has not been mentioned/used more often by micro-growers?

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Unless you have a sealed room, they are not effective at all. Save your money and time.

Quick question for you all running Co2....
Exactly HOW MUCH light are you guys running to justify needing the supplement so badly?

@ 81.25w/sq. ft. of HID, Lux was right @ 70k-80k across the canopy which left me with 20+ oz off a single Gorilla Glue with NO Co2.




So again I ask,
How much y'all running to "need" this Co2 again?

kkookoo said:

Too bad there isn’t a way to ignore posts that are off topic. Opinions are like assholes... or. People sharing unrequested opinions are assholes

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Wtf.
Answer the question so everyone can see that debating over a Co2 bag when you're growing a plant @ 1/4 its potential in the first place is pointless.
Piss off.

kkookoo said:

Haha

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A 6 year old thread started by someone that hasn't posted in 6 years. It's a dead thread about a worthless Co2 bag. Half the people posting about those worthless bags have exhaust fans running the entire time sucking out what minimal amount of Co2 those bags create. Might as well just put your money in a pile and light it on fire. Same effect as those worthless Co2 bags. If you want to run Co2 set up your grow area properly to use it and get real Co2 equipment. Anything other than that, bags of grain, vinegar and baking soda, all that nonsense is worthless. Some stoner growing a plant in a tent with a bag of mushrooms hanging from the top. Too funny. The only thing you get out of that is mushrooms for dinner.

kkookoo said:

the sensitivity of people on weed forums is unreal.

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Don't let the truth bring out your sensitivity for all to see.

I knew a guy that would put Alka Seltzer in a glass of water on the floor next to his plants convinced he was giving them a Co2 boost. Maybe you two share growing tips?

.Smoke said:

Quick question for you all running Co2....
Exactly HOW MUCH light are you guys running to justify needing the supplement so badly?

@ 81.25w/sq. ft. of HID, Lux was right @ 70k-80k across the canopy which left me with 20+ oz off a single Gorilla Glue with NO Co2.
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So again I ask,
How much y'all running to "need" this Co2 again?

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I run a sealed room with no intake or exhaust, I REALLY need this c02

teddy bonkers said:

I run a sealed room with no intake or exhaust, I REALLY need this c02

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At least that makes a bit of sense.

.Smoke said:

At least that makes a bit of sense.

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but i use a proper tank and meter with photosensor, no bag BS

I didn't even notice that the TS posted this 6 years ago.
Bags and all that other shit are wortless.
There are only 2 proper ways. CO2 in a bottle or creating CO2 by burning propane or another gas.

For all the people who still think that a bag or a bucket with yeast will work... you create more CO2 by breathing. So do some workout in your room. The CO2 level will rise above 2000 in no time.

Keesje said:

I didn't even notice that the TS posted this 6 years ago.
Bags and all that other shit are wortless.
There are only 2 proper ways. CO2 in a bottle or creating CO2 by burning propane or another gas.

For all the people who still think that a bag or a bucket with yeast will work... you create more CO2 by breathing. So do some workout in your room. The CO2 level will rise above 2000 in no time.

Click to expand...

Bottled co2 or burner is the pro way. I just do not see how these fungus bags can produce an appreciable amount. Brewing large amounts of sugar with yeast would need storage and metering. Think it would be tricky, and probably more expensive than compressed co2 in cylinder. Unless you were calculating value of alcohol produced.

Has anyone in here actually measured the output of a mycelium bag with a co2 monitor? Or is this all chest beating dick measuring broscience. Just curious.